ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02714.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02715.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02716.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTMagnetic resonance imaging (MRI) examination of the spinal cord is now a first‐line in vestigation for the evaluation of suspected syringohydromyelia. It is an accurate, non‐invasive means of detecting cavities within the spinal cord and for assessing spinal cord size and the position of the cerebellar tonsils. It has considerable advantages over post‐myelographic computerised tomography (CT). The current study discusses our initial experience of thirteen surgically proven cases of syringomyelia with special reference to appearances on T 1 and T2 weighted images and a discussion of the apparently confusing appearances of the cavities on the T2 weighted i

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02717.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTSix patients whose post‐myelographic computed tomography (CT) showed syringomyelia but whose clinical findings were not consistent were evaluated with magnetic resonance imaging (MRI). In five of these patients no cavity was seen with MRI. A cavity was demonstrated in the sixth case but not in the region of abnormali ty on CT. MRI confirmed the clinical impression that intake of contrast into the cord did not represent a sryinx cavity. Possible causes are discussed. The term ‘pseudosyrinx’ is used for such a situ

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02718.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTEighty four MRI examinations of 69 paediatric patients referred to the RNSH MRI unit were retrospectively reviewed with clinical notes to establish the role of MRI scanning in clinical practice to date. In view of the limited scanning time presently available, this study aims to identify those children for whom MRI provided the most useful diagnostic information and most assisted subsequent management.For intra‐cranial examinations, the most useful applications were as follows:—1Pre‐operative localization of primary brain tumours to assist selection of surgical approach and demonstrate involvement of adjacent structures or unsuspected distant CNS spread.2Surveillance of known tumours to determine the need for chemotherapy, radiotherapy or further surgery and to differentiate recur rent tumour from haemorrhage or cyst formation.3Demonstrate congenital or neoplastic lesions in the pituitary region.4Identify the presence and extent of disease in suspected demyelinating and ischaemic conditions.5Exclude the presence of lowgrade glioma associated with known cyst formation.In the spine, MRI was most useful in the demonstration of syrinx cavities including size, extent and loculation. A number of these patients presented with scoliosis. Assessment of cord tumours and spinal dysraphism including tethered cord also proved useful.Significant problems in paediatric scanning included movement artifact, most common in children under six years of age with psychomotor retardation, and sometimes nescessitating general anaest

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02719.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

SUMMARYRecent advances in surgery have made it possible to resect virtually all glomus tumours involving the petrous temporal bone.The surgical approach depends on the extent of the tumour and the degree of involvement of the intrapetrous portion of the internal carotid artery.High resolution computed tomography offers an accurate means of staging these tumours and of distinguishing them from an aberrant internal carotid artery.The CT scans of eighteen patients thought clinically to have glomus tumours of the temporal bone were reviewed. The final diagnoses in our series included twelve glomus turnours, three aberrant internal carotid arteries, two carcinoid tumours and one meningioma.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02720.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTA comparison has been made of CT Discography with standard discograms in 19 consecutive patients (51 discs).An assessment of the degree and presence of nuclear degeneration on axial scans was com parable to the images obtained by lateral and Ap discograms. CT confirmed that the injection of contrast medium was nuclear in position particularly in technically difficult patients. It readily distinguished a posterolateral nuclear prolapse from the artefact caused by extravasation from the needle tract. Symptomatic discs were iden tified in 10 patients all of which had posterior disc bulges on prediscogram CT images. The presence of a normal disc contour on CT does not, however, exclude nuclear degeneration or prolapse: this was seen in 10 asymptomatic discs. In the postoperative patient, CT provided useful information about the facet joints and the solidity of fusion grafts. Flexion and extension axial images (dynamic studies) provided no further useful information.CT discography is not recommended for routine use, but may provide a useful adjunct in assessing the nucleus when the discogram has been technically difficult and in the postoperative patient. Prelimary axial scans prior to discography may be used to localise abnormal disc margins suggesting the levels at which provocational studies may be successful. This would avoid unnecessary invasive investigations at non‐bulging disc

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02721.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTCT scanning is an excellent modality for assessment (or exclusion) of infection in the epidural space, vertebrae and paraspinal muscles. We suggest the use of intrathecal contrast to assess the effect on the theca whether there are neurological signs or not. Intravenous contrast should also be used to demonstrate the inflammatory granulation tissue, micro abscesses and the extent of the disease.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02722.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTThree cases of intraspinal lumbosacral lipoma are reported and the existing English literature is reviewed. Intraspinal lumbosacral lipoma presents a distinct clinical and radiological pat tern. It should be suspected if, in a child, a soft tissue mass in the lumbosacral region is associated with a neurological deficit in the lower limbs, unilateral talipes equinovarus or bony developmental defects of the vertebral bodies and sacrum. The presence of radio‐lucency in the vertebral canal in plain films is pathognomonic of intraspinal lipoma. At myelography, the presence of a large thecal sac, a low position of the conus medullaris and demonstration of extension of the lesion outside the vertebral canal are characteristic of in traspinal lipoma. In infancy, these lesions may superficially resemble sacrococcygeal teratom

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1988.tb02723.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY